Finding the Fourth Proportional to 72,450.09, 108,675.89 and 19,859.58

Step by Step Solution

1. Step 1: Write the proportion equation
   72,450.09 : 108,675.89 = 19,859.58 : x
2. Step 2: Convert to fraction form
   72,450.09/108,675.89 = 19,859.58/x
3. Step 3: Cross multiply
   72,450.09x = 108,675.89 × 19,859.58
4. Step 4: Simplify right side
   72,450.09x = 2,158,257,531.53
5. Step 5: Solve for x
   x = 2,158,257,531.53/72,450.09
6. Step 6: Final answer
   x = 29,789.58